87891986

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3631}}^1$

素因数の和:3679

約数の個数: 48

約数和(自身を含む): 173900160

約数和(自身を除く): 86008174

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 931, 1274, 1729, 1862, 3458, 3631, 7262, 12103, 24206, 25417, 47203, 50834, 68989, 94406, 137978, 177919, 330421, 355838, 482923, 660842, 896857, 965846, 1793714, 2312947, 3380461, 4625894, 6277999, 6760922, 12555998, 43945993, 87891986]

約数ペア:

[(1, 87891986), (2, 43945993), (7, 12555998), (13, 6760922), (14, 6277999), (19, 4625894), (26, 3380461), (38, 2312947), (49, 1793714), (91, 965846), (98, 896857), (133, 660842), (182, 482923), (247, 355838), (266, 330421), (494, 177919), (637, 137978), (931, 94406), (1274, 68989), (1729, 50834), (1862, 47203), (3458, 25417), (3631, 24206), (7262, 12103)]